I saw some incorrect statements in this forum. First I am a owner of Lite-On CD-RW LTR40128S and my Firmware is at ZS0J. At this time, Nero is reporting to me that my drive supports Mt. Rainier format, do not test P-CAV at 40 X because I don't have midia available in my country for that speed (my 17 years old son used the CD-R that comes with drive before I stopped him - he is really to fast too....). In the site of LiteOn, there is a note that once you migrate to a new firmware the return is impossible. Does anyone had been succesfull to do that at advanced firmwares now available ? Also in the LiteOn site I read that disable Smart Proof is not possible with the new firmware so I'm really afraid to OC my drive. Thanks in advance.

If you believe everything you read on the Lite-on Website I do believe that you believe that The Moon is made of Cheese and also that Brazil will win the 2006 World Cup !!!

Anyway Welcome and Now on to the main topic You can reverse the Firmware upgrade using the correct software as many of members of the forum have said. If you do a search at the top of the page you will find their comments. But on saying this I have always been a believer of "If it's not broken don't try and fix it " Meaning unless you are a Speed Chaser leave it alone if it is working as it should or buy a 48x CDRW. Then you won't have any problems

I overclocked a 40125W to 48125W (VVS06). The main problem is to find the right CD-Rs that can be burned with 48x.

So far, the best results I got come with very cheap (22 EURO for 50 CD-Rs) bulk CD-Rs: "SilverCircle 700MB/80min, 1x - 40x" by Moser Baer India Ltd. (Phthalocyanine-type). With Nero Scan Disk, I get nor read errors (if burned in DAO, otherwise the last block always is marked as "unreadable" in Scan Disk, but the disk is fully readable => seems to be a Nero-problem) and 700 MB are burned in around 2:50 min at 48x.

I also tried CMC-made CD-Rs (also Phthalocyanine-type), but quality of these is very unsteady: some work fine at 48x, some don't (even if they are of the same package!). You can see the difference between CMC and Moser Baer, if you look at the disk: Moser Baer seems to have a much smoother Phthalocyanine-layer, espacially near the outer edge of the disk.

I think, it's only a matter of time, until more CD-Rs are available for burning at 48x.

I already tried some Taiyo Yuden CD-Rs, but because I always burn with SmartBurn on, I was only able to use 40x speed. Perhapps the next firmware release for Liteon 48125W will have a better support for Taiyo Yuden CD-Rs.